Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1997-11-01 |
タイトル |
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タイトル |
CHARACTERISTICS OF RADIO ATTENUATION COEFFICIENT ON THE SØR RONDARNE ICE SHEET, ANTARCTICA |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ID登録 |
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ID登録 |
10.15094/00003997 |
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ID登録タイプ |
JaLC |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
記事種別(英) |
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en |
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ABSTRACT |
著者名よみ |
マエノ, ヒデオ
ウラツカ, セイホ
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著者名(英) |
MAENO, Hideo
URATSUKA, Seiho
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著者所属(英) |
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en |
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Communications Research Laboratory, Ministry of Posts and Telecommunications |
著者所属(英) |
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en |
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Communications Research Laboratory, Ministry of Posts and Telecommunications |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
The depth-averaged attenuation coefficients are calculated from the echo pattern measurements from internal ice. The attenuation coefficients around the Sør Rondane Mountains, Antarctica were mapped from the 179MHz airborne radio-echo sounder, which made observations during 1986. The map shows a tendency of decreasing attenuation as the surface altitude of the ice sheet increases. This result is interpreted by using the relationship between attenuation coefficients and ice temperature. In addition, a cosine relationship was found between attenuation coefficients and the angle of the radar polarization from the topographic contour. The dynamic range of the variety of the attenuation coefficients is 1.2dB/100m. If the ice flow is perpendicular to the topographic contour, the ice flow direction will be derived from the polarimetric radar observation. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA10756213 |
書誌情報 |
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
巻 11,
p. 252,
発行日 1997-11
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出版者 |
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出版者 |
National Institute of Polar Research |